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Cheap flights from Seattle to Ireland from €215

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 14/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
15:40 - 11:05
SEA
-
DUB
11h 25m
1 stop
Icelandair Logo
14:15 - 20:40
DUB
-
SEA
14h 25m
1 stop
€341Icelandair
Tue, 14 Apr - Thu, 23 Apr
Icelandair Logo
15:40 - 13:15
SEA
-
DUB
13h 35m
1 stop
Icelandair Logo
14:15 - 20:40
DUB
-
SEA
14h 25m
1 stop
€357Icelandair
Sun, 19 Apr - Thu, 23 Apr
American Airlines Logo
18:50 - 16:45
SEA
-
SNN
13h 55m
1 stop
American Airlines Logo
07:50 - 16:55
SNN
-
SEA
17h 05m
1 stop
€394American Airlines
Tue, 24 Feb - Tue, 3 Mar
American Airlines Logo
14:17 - 16:45
SEA
-
SNN
18h 28m
2 stops
American Airlines Logo
07:50 - 16:55
SNN
-
SEA
17h 05m
1 stop
€398American Airlines
Tue, 24 Feb - Tue, 3 Mar
Multiple Airlines Logo
18:40 - 14:40
SEA
-
ORK
36h 00m
1 stop
Multiple Airlines Logo
06:15 - 11:45
ORK
-
SEA
13h 30m
1 stop
€400Multiple Airlines
Mon, 30 Mar - Tue, 7 Apr
Delta Logo
11:45 - 14:40
SEA
-
ORK
18h 55m
2 stops
Delta Logo
06:15 - 16:30
ORK
-
SEA
18h 15m
1 stop
€402Delta
Mon, 30 Mar - Tue, 7 Apr
Delta Logo
11:45 - 14:40
SEA
-
ORK
18h 55m
2 stops
Delta Logo
10:50 - 22:10
ORK
-
SEA
19h 20m
2 stops
€410Delta
Mon, 30 Mar - Tue, 7 Apr
Multiple Airlines Logo
14:24 - 16:30
SEA
-
ORK
18h 06m
2 stops
Multiple Airlines Logo
19:35 - 19:00
ORK
-
SEA
31h 25m
2 stops
€463Multiple Airlines
Sun, 12 Apr - Fri, 1 May
United Airlines Logo
23:35 - 10:15
SEA
-
SNN
26h 40m
2 stops
United Airlines Logo
12:30 - 16:37
SNN
-
SEA
36h 07m
2 stops
€464United Airlines
Tue, 14 Apr - Sat, 25 Apr
United Airlines Logo
23:59 - 10:15
SEA
-
SNN
26h 16m
2 stops
United Airlines Logo
12:30 - 11:37
SNN
-
SEA
31h 07m
2 stops
€495United Airlines
Fri, 1 May - Fri, 15 May

Icelandair flights from Seattle to Ireland

Our best Icelandair deals on Seattle to Ireland flight tickets
Icelandair
14 Apr
SEA15:40Seattle/Tacoma Intl
11h 25m
1 stop
DUB11:05Dublin
23 Apr
DUB14:15Dublin
14h 25m
1 stop
SEA20:40Seattle/Tacoma Intl
€341
Icelandair
19 Apr
SEA15:40Seattle/Tacoma Intl
13h 35m
1 stop
DUB13:15Dublin
23 Apr
DUB14:15Dublin
14h 25m
1 stop
SEA20:40Seattle/Tacoma Intl
€357
Icelandair
24 Apr
SEA19:00Seattle/Tacoma Intl
32h 05m
1 stop
DUB11:05Dublin
29 Apr
DUB12:15Dublin
13h 40m
1 stop
SEA17:55Seattle/Tacoma Intl
€358

United Airlines flights from Seattle to Ireland

Our best United Airlines deals on Seattle to Ireland flight tickets
United Airlines
28 Apr
SEA23:59Seattle/Tacoma Intl
25h 46m
1 stop
DUB09:45Dublin
13 May
DUB09:50Dublin
31h 25m
1 stop
SEA09:15Seattle/Tacoma Intl
€397
United Airlines
28 Apr
SEA12:08Seattle/Tacoma Intl
15h 02m
1 stop
DUB11:10Dublin
5 May
DUB09:50Dublin
33h 49m
2 stops
SEA11:39Seattle/Tacoma Intl
€403
United Airlines
4 May
SEA19:20Seattle/Tacoma Intl
28h 25m
1 stop
DUB07:45Dublin
13 May
DUB09:50Dublin
16h 40m
1 stop
SEA18:30Seattle/Tacoma Intl
€403

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 29 January 2026.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 14/4

15:40-11:05

1 stop11h 25m

Dublin

Thu 23/4

14:15-20:40

1 stop14h 25m

€341

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 19/4

15:40-13:15

1 stop13h 35m

Dublin

Thu 23/4

14:15-20:40

1 stop14h 25m

€357

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 24/2

18:50-16:45

1 stop13h 55m

Shannon

Tue 3/3

07:50-16:55

1 stop17h 05m

€394

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 24/2

14:17-16:45

2 stops18h 28m

Shannon

Tue 3/3

07:50-16:55

1 stop17h 05m

€398

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Mon 30/3

18:40-14:40

1 stop36h 00m

Cork

Tue 7/4

06:15-11:45

1 stop13h 30m

€400

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Mon 30/3

11:45-14:40

2 stops18h 55m

Cork

Tue 7/4

06:15-16:30

1 stop18h 15m

€402

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Mon 30/3

11:45-14:40

2 stops18h 55m

Cork

Tue 7/4

10:50-22:10

2 stops19h 20m

€410

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Sun 12/4

14:24-16:30

2 stops18h 06m

Cork

Fri 1/5

19:35-19:00

2 stops31h 25m

€463

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 14/4

23:35-10:15

2 stops26h 40m

Shannon

Sat 25/4

12:30-16:37

2 stops36h 07m

€464

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Fri 1/5

23:59-10:15

2 stops26h 16m

Shannon

Fri 15/5

12:30-11:37

2 stops31h 07m

€495

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of February is another great option to travel to Ireland, with average flight prices from Seattle averaging around €459.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €538 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €479 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Ireland flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Ireland flights?

You could potentially save up to 2% on your flight if you consider stops on a Seattle to Ireland flight.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 05m

Direct flights

Every day

Airports in Ireland

77 airports
The fastest flight from Seattle to Ireland takes 9h 05m
Direct flights go from Seattle to Ireland every day.
There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €38
Flights to Corkfrom €90
Flights to Shannon, Clarefrom €83
Flights to Donegalfrom €114
Flights to Milltown (Kerry)from €38